Scanf.scanf "%d %d" (fun a b ->
    Printf.printf "%d." (a / b);

    let rec loop i rest =
        if i = 50 then print_newline () else
            let rest = rest * 10 in
            let () = Printf.printf "%d" (rest / b) in
            let rest = rest mod b in
            loop (i + 1) rest
    in
    loop 0 (a mod b)
)